2006-08-15 13:56:20 · 8 answers · asked by JAY j 1 in Cars & Transportation ➔ Maintenance & Repairs
From dust and brake pads being ground into the rotors, and thus being heated to almost 600 degrees.
2006-08-15 13:59:46 · answer #1 · answered by Silverstang 7 · 0⤊ 0⤋
Heat is the root cause of glazing. It can occur for a few reasons but primarily it is the result of high-speed and or repeated braking. There are mettallic or semi-metallic pads on most vehicles these days but there are still some organic pads out there. The organic pads and the semi's are the most frequent to glaze up. If glazing becomes a problem (i.e. it is affecting your stopping distance and brake effectiveness), then it is advisable to have the rotors deglazed - by having a brake technician or certified mechanic skim them very lightly on a brake lathe.
2006-08-15 16:27:12 · answer #2 · answered by ; - } 5 · 1⤊ 0⤋
its usually not a problem ...if there is air in the lines it can cause the pads to drag on them too much ... and some brands of pads are garbage to .... and if you do a couple of three high speed stops in a row that can get them sometimes to but usually the result of frying the rotors is a warped rotor ... a glaze can be broken by just wetting down the brakes with water and letting them sit overnight.
2006-08-15 14:05:12 · answer #3 · answered by Anonymous · 0⤊ 0⤋
the pressure of the brake pads will eventually wear the rotor down smooth, the brake pads have metal mixed with a composition to keep heat and friction down, anything will wear down smooth after making contact with another source that will cause friction or wear. if the brake pads are glazed, it is from riding the brakes or waiting to the last second to brake, causing high heat and friction. answer- heat and friction
2006-08-15 14:06:29 · answer #4 · answered by taknadvantageof 2 · 0⤊ 0⤋
Overheating. It's the pads that glaze mostly but rotors can too.
2006-08-15 13:59:46 · answer #5 · answered by Bostonian In MO 7 · 0⤊ 0⤋
Because you bought crappy brakes. And they got hot. Next time go to an Auto Value parts store and get some ThermoQuiets.
2006-08-15 14:46:16 · answer #6 · answered by Anonymous · 0⤊ 0⤋
High speed braking is the most common reason.
2006-08-15 14:06:18 · answer #7 · answered by nathansi01 2 · 0⤊ 0⤋
because they get to hot ,esp, if your pads are wore badly
2006-08-15 14:01:39 · answer #8 · answered by pr 1 · 0⤊ 0⤋